Legen...wait for it.... dary
Guys who should really be a couple…

 Sherlock and Watson. Well, duh 

Seth and Stefon. Self explanatory :) 

 Joey and Chandler. I’ll agree. They have a cute straight guy bromance. But look at this gif. LOOK! 

 Andy Samberg and Justin Timberlake. It’s what the people want XD